CN102826547A - Preparation method of peach pit activated carbon - Google Patents
Preparation method of peach pit activated carbon Download PDFInfo
- Publication number
- CN102826547A CN102826547A CN2012102785318A CN201210278531A CN102826547A CN 102826547 A CN102826547 A CN 102826547A CN 2012102785318 A CN2012102785318 A CN 2012102785318A CN 201210278531 A CN201210278531 A CN 201210278531A CN 102826547 A CN102826547 A CN 102826547A
- Authority
- CN
- China
- Prior art keywords
- peach
- preparation
- activated carbon
- pit
- dry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 235000006040 Prunus persica var persica Nutrition 0.000 title abstract description 8
- 240000006413 Prunus persica var. persica Species 0.000 title 1
- 239000000843 powder Substances 0.000 claims abstract description 15
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims abstract description 7
- 238000000197 pyrolysis Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000012216 screening Methods 0.000 claims abstract description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- 235000015320 potassium carbonate Nutrition 0.000 claims description 5
- 230000004913 activation Effects 0.000 claims description 4
- 238000003763 carbonization Methods 0.000 claims description 4
- 238000010792 warming Methods 0.000 claims description 4
- 235000017550 sodium carbonate Nutrition 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 244000144730 Amygdalus persica Species 0.000 abstract description 7
- 230000003213 activating effect Effects 0.000 abstract description 4
- 238000010000 carbonizing Methods 0.000 abstract 4
- 239000000463 material Substances 0.000 abstract 3
- 238000012993 chemical processing Methods 0.000 abstract 1
- 239000012153 distilled water Substances 0.000 abstract 1
- 238000000227 grinding Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910000027 potassium carbonate Inorganic materials 0.000 abstract 1
- 230000000274 adsorptive effect Effects 0.000 description 4
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 3
- 229910052740 iodine Inorganic materials 0.000 description 3
- 239000011630 iodine Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 2
- 235000017060 Arachis glabrata Nutrition 0.000 description 1
- 244000105624 Arachis hypogaea Species 0.000 description 1
- 235000010777 Arachis hypogaea Nutrition 0.000 description 1
- 235000018262 Arachis monticola Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- CXKWCBBOMKCUKX-UHFFFAOYSA-M methylene blue Chemical compound [Cl-].C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 CXKWCBBOMKCUKX-UHFFFAOYSA-M 0.000 description 1
- 229960000907 methylthioninium chloride Drugs 0.000 description 1
- 235000020232 peanut Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a preparation method of peach pit activated carbon, relating to the technical field of chemical processing of forest products. The method comprises the steps of drying peach pits and carbonizing at 300-600 DEG C to produce carbonizing material, and grinding and screening to produce dry carbonizing material powder; mixing the dry carbonizing material powder with dry potassium carbonate powder according to proportion of 1:1, and placing the mixture into an activating furnace, raising the temperature to 500-900 DEG C to perform pyrolysis for 1-4 hours under an anaerobic condition, wherein the heating rate is 5-20 DEG C/min; and rinsing the above obtained products by distilled water and drying to obtain the activated carbon. Compared with the prior art, the preparation method has the advantages of no pollution, safety and reliability and high activated carbon yield.
Description
Technical field
The present invention relates to the forest chemical technical field, particularly relate to a kind of preparation process of active carbon.
Background technology
2011, China's peach ultimate production increased nearly 30% up to 1,500 ten thousand kilograms than 2010.The characteristics of peach are to be difficult for storing, and rot easily, and peach is processed into the important channel of peach industry for this reason, also just produces a large amount of peach-pits naturally.Peach-pit is wooden hard, is the high quality raw material of producing gac.Northern China is abounded with the area of peach for this reason, and having is raw material in a large number with the peach-pit, and the physics method is produced the enterprise of peach-pit granulated active carbon.In these enterprises, have only with Slapple activating furnace and just can produce granulated active carbon than high absorption property.And Slapple activating furnace must be made an investment in more than 1,000,000 yuan, and this has limited making full use of of peach-pit.Do not have Slapple activating furnace for those, and produce the peanut of peach-pit granulated active carbon, its product adsorptivity is too poor, has only the 1-3mg/0.1g gac like the adsorptive value of methylene blue.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of pollution-free, safe and reliable, peach-pit preparation method of active carbon that the gac yield is high is provided.
The present invention includes following steps:
(1) peach-pit is dry, process carbonized stock 500-600 ℃ of carbonization, crushing and screening makes carbonized stock dry powder;
(2) with after carbonized stock dry powder and the mixed of salt of wormwood dry powder, put into activation furnace, under anoxic condition, be warming up to 600-900 ℃ and carry out pyrolysis according to 1:0.5-1;
(3) product that above-mentioned steps is made promptly gets gac with the zero(ppm) water rinsing, after being dried to water cut and being lower than 10%.
Said pyrolysis time is 1-4 hour, and temperature rise rate is 1-20 ℃/min.
Said salt of wormwood can replace with yellow soda ash.
The Socryl Blue BRL adsorptive value that the present invention prepares Powdered Activated Carbon is 90～150mg/g, iodine sorption value 300～470mg/g; The present invention prepares in the gac process, no waste water, exhaust gas emission.
Embodiment
Below in conjunction with embodiment the present invention is elaborated:
Embodiment 1: the preparation of peach-pit gac
(1) peach-pit is dry, process carbonized stock 450 ℃ of carbonizations, crushing and screening makes carbonized stock dry powder;
(2) with after carbonized stock dry powder and the mixed of salt of wormwood dry powder according to 1:1, put into activation furnace, under anoxic condition, be warming up to 700 ℃ and carry out pyrolysis, omnidistance 2.5 hours, temperature rise rate was 12.5 ℃/min;
(3) product that above-mentioned steps is made promptly obtains gac after with zero(ppm) water rinsing, drying.
The Socryl Blue BRL adsorptive value of the Powdered Activated Carbon of preparation is 145mg/g, iodine sorption value 450mg/g.
Embodiment 2: the preparation of peach-pit gac
(1) peach-pit is dry, carbonized stock is processed in carbonization under 450 ℃ of conditions, and crushing and screening makes carbonized stock dry powder;
(2) with after carbonized stock dry powder and the mixed of yellow soda ash dry powder according to 1:1, put into activation furnace, under anoxic condition, be warming up to 700 ℃ and carry out pyrolysis, omnidistance 2.5 hours, temperature rise rate was 12.5 ℃/min;
(3) product that above-mentioned steps is made promptly obtains gac after with zero(ppm) water rinsing, drying.
The Socryl Blue BRL adsorptive value of the Powdered Activated Carbon of preparation is 143mg/g, iodine sorption value 460mg/g.
Above-described embodiment is more preferably one of embodiment of the present invention, and common variation that those skilled in the art carries out in technical scheme scope of the present invention and replacement all should be included within protection scope of the present invention.
Claims (3)
1. a peach-pit preparation method of active carbon is characterized in that comprising the steps:
(1) peach-pit is dry, process carbonized stock 300～600 ℃ of carbonizations, crushing and screening makes carbonized stock dry powder;
(2) with after carbonized stock dry powder and the mixed of salt of wormwood dry powder, put into activation furnace, under anoxic condition, be warming up to 500～900 ℃ and carry out pyrolysis according to 1:1;
(3) product that above-mentioned steps is made promptly obtains gac after with zero(ppm) water rinsing, drying.
2. peach-pit preparation method of active carbon as claimed in claim 1 is characterized in that: said pyrolysis time is 1～4 hour, and temperature rise rate is 5～20 ℃/min.
3. peach-pit preparation method of active carbon as claimed in claim 1 is characterized in that: said salt of wormwood can replace with yellow soda ash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102785318A CN102826547A (en) | 2012-08-08 | 2012-08-08 | Preparation method of peach pit activated carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102785318A CN102826547A (en) | 2012-08-08 | 2012-08-08 | Preparation method of peach pit activated carbon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102826547A true CN102826547A (en) | 2012-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102785318A Pending CN102826547A (en) | 2012-08-08 | 2012-08-08 | Preparation method of peach pit activated carbon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102826547A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343058A (en) * | 2007-07-13 | 2009-01-14 | 李国君 | Absorbent charcoal special for electrical condenser manufactured with hard husk |
| CN101962184A (en) * | 2010-11-03 | 2011-02-02 | 福建农林大学 | Method for preparing active carbon by mechanical-chemical method |
-
2012
- 2012-08-08 CN CN2012102785318A patent/CN102826547A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343058A (en) * | 2007-07-13 | 2009-01-14 | 李国君 | Absorbent charcoal special for electrical condenser manufactured with hard husk |
| CN101962184A (en) * | 2010-11-03 | 2011-02-02 | 福建农林大学 | Method for preparing active carbon by mechanical-chemical method |
Non-Patent Citations (1)
| Title |
|---|
| 田莹莹等: "茶籽壳质活性炭的制备及其电化学性能", 《功能材料》 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121219 |